Answer:

y=1620

Step-by-step explanation:

y=kx²

80=k(20)²

80=k(400)

80/400=k(400)/400

0.2=k

y=(0.2)(90)²

y=0.2(8,100)

y=1620

Answer:

×=1, 190

YAN ANG SAGOT SANA NAKATULONG

Step-by-step explanation:

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